Computer Rooms 101Computer Rooms 101

Geoffrey DayGeoffrey Day

Will the floor collapse?Will the floor collapse?42RU rack - 115kg42RU rack - 115kg

40 * 1Ru servers - HP DL360, 16.78kg each40 * 1Ru servers - HP DL360, 16.78kg each

Shelves, cables etc 15KG per rackShelves, cables etc 15KG per rack

Can your floor support .9 tonne per square Can your floor support .9 tonne per square metremetre

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Getting the equipment in.Getting the equipment in.

Is the door big enough?Is the door big enough?

Yes but will it fit in the lift?Yes but will it fit in the lift?

Will the lift take the weight ?Will the lift take the weight ?

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Can you use the lift?Can you use the lift?

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Power - UPSPower - UPS

Load (va) = volts X maximum amperage Load (va) = volts X maximum amperage for each bit of equipmentfor each bit of equipment

Add them all up, that’s the minimum size Add them all up, that’s the minimum size you needyou need

How long does it last for?How long does it last for? Where are you putting it, these things can Where are you putting it, these things can

be physically big?be physically big?

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Air conditionerAir conditioner

You pay for power in – UPSYou pay for power in – UPS You pay for power out – air You pay for power out – air

conditionerconditioner Most equipment tells you how much Most equipment tells you how much

heat it producesheat it produces Add them all upAdd them all up Now go and buy 2 air conditioners, in Now go and buy 2 air conditioners, in

case 1 failscase 1 failsHorror storiesHorror stories

Fire detectionFire detection

Remember – ceiling, room and floorRemember – ceiling, room and floor VESDA – very early smoke detection VESDA – very early smoke detection

apparatus apparatus Particle based detection of smokeParticle based detection of smoke

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Fire Suppression - WaterFire Suppression - Water

Everything will get wet, we are Everything will get wet, we are saving the building saving the building

Remember to have a drain so the Remember to have a drain so the water can get outwater can get out

What about leaks?What about leaks?

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Fire Suppression - gasFire Suppression - gas

Must “fire rate the room”, ie a fire cannot Must “fire rate the room”, ie a fire cannot escape for a period of timeescape for a period of time

Special wall coverings, doors etc, No gaps Special wall coverings, doors etc, No gaps for gas to escapefor gas to escape

INERGEN is a mixture of nitrogen, argon INERGEN is a mixture of nitrogen, argon and carbon dioxideand carbon dioxide

Where do you store the gas?Where do you store the gas? Where do you vent the gas?Where do you vent the gas?

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Power CircuitsPower Circuits

You have 2 circuits to each rack You have 2 circuits to each rack right?right?

Horror story 1Horror story 1 Can the power circuit you plug the Can the power circuit you plug the

UPS into take the load? Can the UPS into take the load? Can the power board?power board?

15amp, 20amp or bigger?15amp, 20amp or bigger?

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So you want a generatorSo you want a generator

How big?How big? Where? (outside of course)Where? (outside of course) Where do you keep the fuel?Where do you keep the fuel? How to refill the tank during an How to refill the tank during an

outage?outage? Diesel does not last foreverDiesel does not last forever

LastlyLastly

You are going to test all You are going to test all

this regularly aren’t you !this regularly aren’t you !

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